La souris bleue(1936)

René, a simple employee of the Univers agency run by Mr. Lebourdier, loves Yvonne. But Mr. Martin dreams of a brighter party for his daughter. In order to win the post of deputy director, René asks Nenette, a pretty blonde, to seduce Mr. Lebourdier. But Nenette is Mr. Martin's girlfriend and she manages to fix everything.